Sharpening unit



S. SEGAL SHARPENING UNIT July 25,1933.

Filed April 23 F/gz.

2 3 R. ou 3 2 E l W m r N T I il m 4. W WA u e d, 3 O .ma 3 F 2 5 f/b 2 V. U B 7 y 1J w D 7 4 o O o Y ma www .sn 2 ....Av 3/ 2 x. M 9 @n 7l NM. f Q o .ffm M b Patented July `25, 1933 y vUnirse STATES PATENT orFiCE fstiucted. f

of the invention to provide,`

SAMUEL snaai., or `Nnw YORK, N. Y., AssrsNon Tosneai. SAFETY RAZOR. conforta- 1rION, OFNEW YORK, N. Y., A CORPORATION or NEW YORK i SHARPENING UNIT Vvimplication filed April 23,

use in the sharpening of razor blades and in the housing ofa razor assembly, the present invention presenting structurally and functionallyimproved characteristics over ap-y "paratus of this character as heretofore con- It is an object `adevice of this type, the parts of which will berelativelyfew in number and individuaL ly `rugged and simple in construction, these partsV being capable `of beingi'eadily manufactured and assembledto provide a compact unitcapable of being sold ata nominal fligurefand operating over long periods of time with `freedom Afrom dilliculty.`

Ayfurtliei' object of theinvention is that of providing a sharpening device embodying a structure such that there will be practicallyno dangerofthe head or blade of the razor being accidentally displaced'with re! (spoot. `to the elements whioli are to` coopcrate therewith, the present invention rnore- .over `providing a structure such that the parts may be detached readily Jfrom association with each other when itis desired to achievethis result. l p Y y 'A still, further y'object is that of furnishing an operating,structure for` a sharpening device and `by means of which thepai'ts will be automatically uncoupled in `theevent that an attempt is made to improperly roperate them. `paratus will not 'be faulty. operation.

Consequently, these parts o1' the apdainaged incident to object thatof providing a unit;` embodying 4receiving space which 1 `will properly containythe parts to'be utilized in association .with said unit so that a convenient andcondensed assembly is provided.

``With these and other objects in mind.

reference is had to the attached sheet of drawing illustrating practical embodiments of the invention, and in which: Fig. 1 is a sectional'side view;

the lines22in thefdirection of the arrows einig. 1; e

of the unit; and

F17 are carried by the hinged sections 14 and: all of these rollers are driven in Aany desired V 20 and this element.

Fig,` 2`is a transi'ferse view taken along ,1929. serial No. 957,421.

31s a partly sectional side view of an illustrative form of retaining device cap- 1 Fig. l isa plan viewof the lower portiono55` Fig. 5 shows `the operating or driving l'parts of the mechanism;

In these views, the numeral indicates the baseol 4the unit which, in the embodi-su ment` illustrated, `is hollow and serves to in Fig. 1, a partition 12 is provided, the

`latter :affording a space adequate for the y V.house a drawer 11 within which, as shown snug accommodation of ayrazor and new asr well as Y. spent blades. Mounted .upon the base is a` housing provided for example by extended portions 13 of the side walls of the unit. Pivotally lmounted adjacent the A.mount a spirally disposed stroppingstrip 16 which is conveniently formed of leather or a similarmaterial capable `of reconditioning the cutting edge of a blade. Similar rollers manner as, for exainple,rby having their shaftsmount gears 18 1 with the teeth of which transmitting gears 19 mesh. One of the roller shafts is extended as at 2O andi this extension is: formed with. a recess or transversely extending bore 21 capable of ,accommodating the projection22 extending inwardly from the edge V,of an opening which forms a part of ahandle or lever 23.' 1 It is Obvious that, as shown, ifthe handle or lever is rotated in a clockwise direction, movement may occur between the shaft end Ultimately, however, the `projection 22 will ride within the opening 21 and thereupon under continued moveter-clockwise direction-and due to the outbores of the studs 25.

line of the opening in this handle-the projection 22 will simply ride out of the bore or recess 2l and the parts may be turned freely with respect to each other. Consequently, if a blade is positioned between the stropping surfaces of the rollers, it will be appreciated that no injury can occur to either the stropping surfaces or the blade edge due to the construction hereinbefore described and provided to guard `against such injury.

A'razor for use in connection with a stropping device conveniently includes a head 2 4 formed with openings through which prongs 25 of clamping plate 26 extend, the blade 27 being interposed between this plate and the head and the parts being tightened by virtue of the fact that the handle 28 is provided at its outer end with a screw threaded socket accommodating the correspondingly threaded stem 29 of the clamping plate. The blade is, of course, formed with openings through which the prongs or studs 25 pass and contrary to conventional construction, it is preferred that the latter elements be bored so as to permit of the passage of pins 30 which extend upwardly from the base 10. Consequently and withthe lid sections ll swung to open positions, the razor head may be brought to a position at which the pins extend through and beyondy the Thereafter, by simply turning the handle of the razor with respect to the head, the stem 29 of the latter will become uncoupled from the former and the handle together with the head may be withdrawn.

According to the present invention, accidental displacement of the parts with respectv to each other is under these circumstances avoided by for example securing a spring 3l to the base l() and which spring has arms 32 bowed to provide recess portions the distance between which is adequate to snugly accommodate the length of a blade. Consemiently.` the blade will be retained as has been shown in Fig. 2 and incident to the fact that the clamping plate underlies the blade, the latter will also be maintained in position.

Itis obvious that a construction different from that shown in Fig. 2 might be employed by simply securing to the base 10 pins 33 which have their lower ends terminating in forked portions 34 serving to pivotally accommodate the bodies of'bellcrank levers 35, the inner en ds of which are coupled by a spring 36. The outer arms of these levers may be formed with inwardly projecting portions 37 which lie normally beyond the blade edge and consequently serve to prevent an accidental detachment from the pins.

In both of these constructions however, it will be apparent that the clamping plate and blade may be readily pushed into position and that after the handle has been detached from the plate, the elements provided for this purpose will serve to retain the blade in such a position that the sharpening operation may be commenced after the lid sections havebeen swung downwardly.

From the foregoing it will be appreciated .that among others, the several objects of each other, further rollers cooperating with said first named rollers to provide two pairs of rollers each to cooperate with one of the cutting edges of a blade to sharpen the same, means for driving said rollers, a resilient element yieldingly engaging the end edges only of a blade disposed between said pairs of rollers and further supporting means separate from said element and cooperating therewith to automatically maintain the bladel in operative position.

2. In combination, a pair of rollers, means for housing the same to be spaced from each other, further rollers cooperating with said first named rollers to provide two pairs oi rollers each to cooperate with one of the cutting edges of a blade to sharpen the same, means for driving said rollers, a pair yof bell-crank levers having their outer arms extending between said pairs of rollers, and means for yieldinglv pressing said arms into engagement with the end edges of a blade to maintain the latter in operative position.

3. In combination, a pair of rollers, means for housing the same to be spaced from each other, further rollers cooperating with said irst named rollers to provide two pairs of rollers each to cooperate with one of the cutting edges of a blade to sharpen the same, means for driving said rollers, supporting pins extending between said pairs of rollers and to mount a blade disposed between the same, and means for automatically gripping the end edges of a blade and arranged adjacent said pins to automatically retain the blade thereon.

4. A razor blade stropper, comprising a base, a pair of rollers mounted thereon and adapted to engage the cutting edge of a razor blade, means for rotating said rollers, means mounted ony said base for engaging solely the unsharpened end edges of a razor blade and independent supporting means c0- l operating with said blade engaging means to by said base for yieldingly engaging solely Y vthe unsharpened endedges of a razor blade and separate supporting means cooperating with said spring members to hold the blade in stropping position.

SAMUEL SEGAL. 

